Beilstein J. Nanotechnol.2013,4, 680–689, doi:10.3762/bjnano.4.77
devices typically display much better performances in photovoltaic cells.
Keywords: active layer morphology; comparison vacuum-processed solar cells; maximum solubility; oligothiophene; solar cells; solution-processedbulkheterojunction; solvent additives; Introduction
The demand for the development of
DCV5T-Bu4 can be applied in solution-processedbulk-heterojunction solar cells. Power conversion efficiencies were increased from 2.1% to 3.0% by using chloronaphthalene as a solvent additive. Atomic force microscopy experiments revealed that an excess of PC61BM was present on the surface of the
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Scheme 1:
Alternative synthetic routes used to yield DCV5T-Bu4.